You know, that particular link is such a poor example.

Despite all the NHS bashing that goes on over there, I prefer it to the system over here. Paying 3.5-9% (salary dependant) only when you are working beats paying significantly more than that when you aren't, in my book anyway. It really sucks when you get laid off to suddenly discover that along with the sudden loss of income, an additional $700 a month expense crops up.
And the crap that you have to deal with every time you change jobs is a pain. New job->New Insurers->Different coverage. Sometimes you have to change doctors, sometimes you have to change pharmacies. What a PITA. And ditto for dentristry. And then add in the fact that the insurers *never* seem to get the coverage dates correct during the transition, you end up having to check that they're not overcharging you, and also make sure that they *do* pay the $300 dentist bill that they should have.

Way too much hassle.